The TPS2358 dual-slot hot-plug controller provides all required power interface functions for two AdvancedMCTM (Advanced Mezzanine Card) modules.
Two fully integrated 3.3-V channels provide inrush control, current limiting, and overload protection. The two 12-V channels use an external FET to provide the same functions, along with ORing control circuits that allow an external FET to prevent reverse current flow. External capacitors are used to set fault times. There is one capacitor for each channel. The 3.3-V current limits are factory set to AdvancedMCTM compliant levels and the 12-V current limits are programmed using external sense resistors. The accurate current sense comparators of the TPS2358 satisfy the narrow ATCA AdvancedMCTM current limit requirements
|
TPS2358 |
TPS2359 |
TPS2456 |
TPS2458 |
TPS2459 |
| Gate Control |
Linear |
Linear |
Linear |
Linear |
Linear |
| No. of Outputs |
4 |
4 |
2 |
2 |
2 |
| Vin(Min)(V) |
8.5 |
8.5 |
8.5 |
8.5 |
8.5 |
| Vin(Max)(V) |
15 |
15 |
15 |
15 |
15 |
| Pin/Package |
48VQFN |
36VQFN |
36VQFN |
32QFN |
32QFN |
| Operation |
Latch Off |
Configurable Latch-off or Retry |
Latch Off |
Latch Off |
Configurable Latch-off or Retry |
| Enable |
Active-Low |
Via I2C |
Active High |
Active Low |
Via I2C |
| Output |
PG/Fault via Dedicated Pins |
PG/Fault via I2C |
PG/Fault via Dedicated Pins |
PG/Fault via Dedicated Pins |
PG/Fault via I2C |
| Circuit Breaker Function |
Interdependent |
Configurable |
Independent |
Interdependent |
Configurable |
| FET Status Monitoring(Typ) |
None |
Via I2C |
None |
None |
Via I2C |
| Current Monitoring |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
| # of AdvancedMCs controlled |
2 |
2 |
2 |
1 |
1 |
| # of 12V (Payload) Rails Controlled |
2 |
2 |
2 |
1 |
1 |
| # of 3.3V (Management) Rails Controlled |
2 |
2 |
0 |
1 |
1 |
| Early Warning Indicator |
None |
Via I2C |
None |
None |
Via I2C |
| Payload Power (12V nominal) FET type |
External |
External |
External |
External |
External |
| Payload Programmable Current Limit |
Resistor Set |
Resistor Set / I2C |
Resistor Set |
Resistor Set |
Resistor Set / I2C |
| Optional Oring FET Control |
Yes |
Yes |
Yes |
Yes (12V rail) |
Yes |
| Management Power FET type |
Internal |
Internal |
N/A |
Internal |
Internal |
| Current Limiting during Fault |
Yes |
Yes |
Yes |
Yes |
Yes |
| 3.3V Power Fault Current Limit Range(A) |
0.170 to 0.225 |
0.170 to 0.225 |
N/A |
0.170 to 0.225 |
0.170 to 0.225 |
| Fast Trip response (nS) |
350 |
350 |
350 |
350 |
350 |
| Management Power Internal FET R(ds)on(Typ) |
290 mOhm |
290 mOhm |
N/A |
290 mOhm |
290 mOhm |
| Digital Interface |
None |
I2C |
None |
None |
I2C |
| Approx. Price (US$) |
4.00 | 1ku |
5.00 | 1ku |
3.45 | 1ku |
2.00 | 1ku |
2.50 | 1ku |